Drip disinfecting apparatus



NOV: 1929. KOOPERSTEIN DRIP DISINFECTING' APPARATUS Fil ed March 5, 1927 2 Sheets-Sheet INVENTOR. Lou is Kb opera ieln 0000 000000 Q0 #0 0 00 000 ,8 CG woo wwm il w .g 5 o wooo A TTORNEYS.

Patented Nov. 5, 1929 UNITED STATES PATENT OFFICE LOUIS KOOPERSTEIN, OF NEW YORK, N. Y., ASSIGNOR TO WEST DISINFECTING COM- PANY, OF LONG ISLAND CITY, NEW YORK, A CORPORATION OF NEW YORK DRIP nrsmrno'rino APPARATUS Application filed March 5,

The object of the present invention. is to provide a disinfecting apparatus of that type in which the apparatus holds a supply of liquidwhich is ejected drop by drop to a given point, usually to a tube leading from the apparatus and to the point where the disinfectant or deodorizing liquid is intended to have its effect. The specific object of the invention is to provide means for more effectively controlling the liquidejection, so as to insure that the ejection is both uniform and continuous. A further object is to provide elements of the character required in such form as to enable their ready construction and assembly at alow manufacturing cost.

The invention will be understood by reference to the accompanying drawings, in

which Figure 1 is a vertical section through an ap paratus embodying the invention;

Figure 2 is a fragmentary bottom view of the liquid containing member;

Figure 3 is a perspective view of the cover for the liquid containing member;

Figure 4 is a plan view of the liquid containing member; I

Figure 5 is a vertical sectional View illustrating a modified form of liquid container and cover, and c Figure 6 is a bottom plan view of the same;

Figure 7 is a vertical section through a second modified form of the liquid container and cover, and

Figure 8 is a bottom plan view of the same;

Figure 9 is a fragmentary perspective view of the liquid containing member illustrated in Figure 7.

Referring to the drawings, Figure 1, A represents a canister having a hinged top B and a horizontal dividing wall C, below which the canister is formed with perforations 1 for the passage of air. The canister is provided with a cup-like bottom 2 from which rises an annular perforated shell 3 which is closed at its top by wall 4, the wall being provided with a projecting annular flange 1 to afford a shallow cup-like receptacle 6. p p

The cup-like bottom member 2 is provided with an outlet nipple 7 for the discharge of the liquid disinfectant or deodorant. Within 1927. Serial No. 172,965.

the canister and resting upon bottom C is the liquid holding member 8. It will be seen that said holder is of substantially less diameter than the interior of the canister, and that it is provided with an upwardly projecing tube'S The liquid holding member 8 is provided with I The bottom wall of the liquid holding mem-- her is closed except for an opening controlled by a valve. The said opening, indicated at 1 1, is conical in shape and located at the base of a sleeve 15 within the liquid holding memher, which sleeve guides the movements of a valve rod 16. At the end of the valve rod is a conical valve head 17 which is normally held in closed position by a spring 18 (Figure 2).

When the liquid holding member is placed in position within the canister, it rests uponshort legs 19, which contact with horizontal Wall C of the canister. The placing of the liquid holding member within the canister does not result in the flow of liquid therefrom. The flow is caused by dropping the cover member 9 into position whereupon its upper wall contacts with the upper end of valve rod 16 and moves the latter downwardly to withdraw valve head 17 from its seat. The liquid then flows onto horizontal wall C and maintains its flow until it assumes a level at or slightly above the lower edge of the cover member. downwardly because air may pass upwardly intermediate tubes 8* and 11.

In practice, also, the cover member will fit loosely upon the liquid containing member so that air can pass between the two until it reaches the upper surface of the liquid content. When, however, the liquid on hori- Projecting V The liquid is permitted to flow zontal wall C rises until it meets the lower edge of the cover member the passageways for air to the liquid are closed and the liquid will not flow through valve 1%, 17, until the 5 level of wall C within the canister falls below the edge of the cover member and again permits air to pass into the liquid containing member.

The capillary action of the wick will be such that it will constantly draw liquid upon the canister and cause its passage drop by drop to the shallow cup-like member 6. When the liquid in member 6 overflows the latter it passes down within member 2 and thence through nipple 7 as above set forth.

In Figures 5 and 6 I have illustrated a liquid holding member tially the same as that illustrated in Figures 1 and 2 with the exception that its cover member 21 is provided with a tube 22 which projects within the liquid containing chamber of member 20 and therefore is liquid therein. The air is permitted to pass from below the liquid through its tube 23 and thence through inlet or inlets 24. The cover member fits loosely upon the liquid containing member and air may pass up between the two and thence through inlets 25. When, however, the liquid so on Wall C reaches such a height that it contacts with'the' bottom wall of the liquid holding member, tube 28 and also passage intermediate the liquid holding member and its cover will be sealed.

In Figure 8 the liquid receiving member or reservoir 26 is provided with a short upwardly projecting chamber 27 for the recep tion of the wick and its tube. with an opening 28 through the bottom wall 0 26 of the reservoir is an air-vent tube 29 having its outlet near the top of the reservoir.

The cover member 30 may be loosely mounted upon the reservoir so as to permit the passage of air between the two and the reservoir at its top may be formed with inlet passages 31 for permittlng air to flow into contact with the liquid.

In the operation of the construction shown in'Figures 7 and 8, air will pass upwardly through vent tube 29 and into the reservoir and may also pass intermediate the reservoir and 1ts cover member and through passages 31. hen, however, the level ofthe liquid on wall C of the canister rises so as to seal opening 28 and the passage intermediate reservoir and its cover further flow of liquid through valve 14, 17 will cease.

The above means provides an accurate control of the liquid discharge from the reservoir. Inasmuch as the liquid passes drop by drop from that part of the canister above the wall C, it will likewise pass drop by drop 7 through nozzle 7. The depth of immersion of wick 13 may be definitely regulated by the 6 distance between the vent tubes or passages which is substansealed by the containing member Communicating and wall C. The construction illustrated in Figures 5 and 7 possesses some advantages over that illustrated in Figures 1 to 4- incluive, inasmuch as the placing of the cover member in position does not subject the wick 13 to contact with the cover member tube and the cover member may always be placed in its final ant proper position so as to insure depression of the valve rod and opening of the valve. The modified constructions also insure Jassage of asufiicient amount of air to the liquid within the reservoir, which liquid is frequently oily or viscid, to insure the proper flow thereof through the valve by atmospheric pressure and gravity. In either form of the device the parts areso constructed and arranged that they may be readily manufactured and assembled at low cost.

Having described my invention what I claim and desire to secure by Letters Patent is as follows In devices of the character described, a barometric feed device for use in combination with a canister having a horizontal supporting wall and a wick device passing through an aperture in said wall and leading to an evaporating pan carried by the canister below said wall, said barometric feed device comprising a reservoir member formed with a centrally located upwardly projecting wick receiving tube, and a cover member having a depending tube adapted to lie in telescopic relation to the upwardly projecting tube. a

valve rod supported vertically in bearings LOUIS KOOPERSTEIN. 

